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Finding the Fourth Proportional to 578,687.73, 798,601.87 and 330,324.56

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Solution

The fourth proportional to 578,687.73, 798,601.87 and 330,324.56 is: 455,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,687.73 : 798,601.87 = 330,324.56 : x
  2. Step 2: Convert to fraction form
    578,687.73/798,601.87 = 330,324.56/x
  3. Step 3: Cross multiply
    578,687.73x = 798,601.87 × 330,324.56
  4. Step 4: Simplify right side
    578,687.73x = 263,797,811,322.93
  5. Step 5: Solve for x
    x = 263,797,811,322.93/578,687.73
  6. Step 6: Final answer
    x = 455,855.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.